//2011 - 4 - 10
#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main(int argc,char **argv)
{
  int a = 1;
  int b = 2;
  printf("%d\n",add(a ,b));
  printf("%d\n",mul(a, b));

  printf("a = %d\n",a);
  printf("b = %d\n",b); 
  swap(&a,&b);
  printf("a = %d\n",a);
  printf("b = %d\n",b); 
  return 0;
}
